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摘要翻译：
弗兰克在1949年对螺旋生长模式的预测定义了晶体生长历史上的一个关键时刻。近几十年来，这一话题受到的关注较少，取而代之的是，在无缺陷同质外延薄膜的生长实验中，我们看到了二维成核理论的复兴。特别是，由Ehrlich-Schwoebel型阶跃边缘势垒控制的层间输运在多层膜形貌形成中的关键作用越来越被认识到。本文在简要回顾经典理论的基础上，报道了在台阶边缘势垒存在下螺旋生长的最新研究。我们的主要观察是，台阶边缘屏障导致了非常规形状的螺旋小丘，显示出与二维成核生长过程中形成的婚礼蛋糕相同的特征不断陡峭的高度轮廓。通过离子轰击Pt(111)表面诱导螺旋位错，从而形成螺旋丘和婚饼共存的同质外延生长系统，实验验证了这一预测。
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英文标题：
《Spiral growth, two-dimensional nucleation, and the Ehrlich-Schwoebel
effect》
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作者：
Joachim Krug
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Materials Science 材料科学
分类描述：Techniques, synthesis, characterization, structure. Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术，合成，表征，结构。结构相变，力学性质，声子。缺陷，吸附质，界面
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
Frank's prediction of the spiral growth mode in 1949 defined a pivotal moment in the history of crystal growth. In recent decades the topic has received less attention, and instead we have seen a resurrection of two-dimensional nucleation theory in the context of growth experiments on defect-free homoepitaxial thin films. In particular, the key role of interlayer transport controlled by step edge barriers of the Ehrlich-Schwoebel type in shaping the morphology of multilayer films has been increasingly recognized. After a brief review of the classical theory, this paper reports on a recent study of spiral growth in the presence of step edge barriers. Our key observation is that step edge barriers lead to unconventionally shaped spiral hillocks that display the same characteristic ever-steepening height profiles as wedding cakes formed during growth by two-dimensional nucleation. This prediction was verified experimentally by inducing screw dislocations through ion bombardment of the Pt(111) surface, thus creating a homoepitaxial growth system on which spiral hillocks and wedding cakes coexist.
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PDF链接：
https://arxiv.org/pdf/709.2049
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